The singer will release 'Anything Could Happen' as the lead single from her second studio album Halcyon.
"I've been with this song a long time and I've had to listen to it a lot to get it just how I wanted it," Goulding told Fearne Cotton on Radio 1 following the track's debut play.
'Anything Could Happen' will be available to download in the UK on September 30, while new album Halcyon follows on October 8.
"This album for me is a journey from dark into light, from confusion to understanding. I didn't set out to write a break-up record but I think it became one," Goulding said of the record.
The star recently unveiled a trailer for her upcoming album, which includes previews of a handful of new tracks.
Meanwhile, Goulding continues to climb the US Hot 100 chart with 'Lights', which has reached a new peak of number two on the list.
Listen to Ellie Goulding's new single 'Anything Could Happen' below: